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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-10-15 17:47:04 +0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-10-26 21:35:50 -0500 |
| commit | 3e303f748cf57fb23e8ec95ab7eac0074be50e2b (patch) | |
| tree | 0ce112511b29eecb0ea987195d0ca08cd195efd6 | |
| parent | da0e5f7ee828f246d85997486fff308837069453 (diff) | |
| download | u-boot-imx-3e303f748cf57fb23e8ec95ab7eac0074be50e2b.zip u-boot-imx-3e303f748cf57fb23e8ec95ab7eac0074be50e2b.tar.gz u-boot-imx-3e303f748cf57fb23e8ec95ab7eac0074be50e2b.tar.bz2 | |
fdt_support: Add multi-serial support for stdout fixup
Currently fdt_fixup_stdout() is using hard-coded CONFIG_CONS_INDEX
constant. With multi-serial support, the CONS_INDEX may no longer
represent actual console, so we should try to extract port number
from the current stdio device name instead of always hard-coding the
constant value.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | common/fdt_support.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index 9adaeb3..f89a3ee 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -22,6 +22,7 @@ */ #include <common.h> +#include <stdio_dev.h> #include <linux/ctype.h> #include <linux/types.h> #include <asm/global_data.h> @@ -90,6 +91,23 @@ int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, } #ifdef CONFIG_OF_STDOUT_VIA_ALIAS + +#ifdef CONFIG_SERIAL_MULTI +static void fdt_fill_multisername(char *sername, size_t maxlen) +{ + const char *outname = stdio_devices[stdout]->name; + + if (strcmp(outname, "serial") > 0) + strncpy(sername, outname, maxlen); + + /* eserial? */ + if (strcmp(outname + 1, "serial") > 0) + strncpy(sername, outname + 1, maxlen); +} +#else +static inline void fdt_fill_multisername(char *sername, size_t maxlen) {} +#endif /* CONFIG_SERIAL_MULTI */ + static int fdt_fixup_stdout(void *fdt, int chosenoff) { int err = 0; @@ -98,7 +116,9 @@ static int fdt_fixup_stdout(void *fdt, int chosenoff) char sername[9] = { 0 }; const char *path; - sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); + fdt_fill_multisername(sername, sizeof(sername) - 1); + if (!sername[0]) + sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); err = node = fdt_path_offset(fdt, "/aliases"); if (node >= 0) { |